20807790085

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{84377}}^1$

素因数の和:84493

約数の個数: 32

約数和(自身を含む): 27087363072

約数和(自身を除く): 6279572987

約数列:

[1, 5, 31, 37, 43, 155, 185, 215, 1147, 1333, 1591, 5735, 6665, 7955, 49321, 84377, 246605, 421885, 2615687, 3121949, 3628211, 13078435, 15609745, 18141055, 96780419, 112474541, 134243807, 483902095, 562372705, 671219035, 4161558017, 20807790085]

約数ペア:

[(1, 20807790085), (5, 4161558017), (31, 671219035), (37, 562372705), (43, 483902095), (155, 134243807), (185, 112474541), (215, 96780419), (1147, 18141055), (1333, 15609745), (1591, 13078435), (5735, 3628211), (6665, 3121949), (7955, 2615687), (49321, 421885), (84377, 246605)]